M5 Compatible With Electro-harmonix 8 Step Program Sequence Pedal

I can safely say that the 8-step program DOES work with the M5/M9/M13. You'll need to change the depth to 3 on the 8-step program and use a mono 1/4'' cable to connect it to the M-series pedals.
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I'd like to buy an M5, with a view to having it controlled by an electro-harmonix 8 step program sequence pedal. The EHX website says I can use controlled voltage to tell the M9 what to do via the expression pedal input, but I wanted to check that this works for the M5.